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Tag: "controlling" at biology news

A 'dimmer switch' for genes

...re affecting the structured regions in the work of controlling genes. "In fact," Graves reports, "the region's unstructured nature appears to be an essential requirement." NMR showed that phosphate addition to this unstructured region caused a gradual decline in DNA binding, gradually turning a gene off. "One t...

Researchers discover key to human embryonic stem-cell potential

...me's primary movers, overseeing, coordinating, and controlling all gene activity.) These proteins were known to play essential roles in maintaining stem cell identity--if they are disabled, the stem cell immediately begins to differentiate and is thus no longer a stem cell. "But we did not know how these prote...

Purdue researchers find key to rice blast fungus

...ens to penetrate the plant is an important part of controlling the disease, said Jin-Rong Xu, a Purdue molecular biologist. Xu, Xinhua Zhao, Yangseon Kim and Gyungsoon Park, all of Purdue's Department of Botany and Plant Pathology, found that an enzyme is a key player in coordinating the fungus' attack. The enz...

Scientists unpick genetics of first 15 minutes of life

...cientists have identified the gene responsible for controlling a first key step in the creation of new life, according to new research published in the journal Nature tomorrow (Thursday 27 October 2005). The gene, known as HIRA, 'chaperones' the early processes that take place once a sperm enters an egg, giving...

K-State professors discover enzyme responsible for creation of a beetle's hard shell

...seful for developing new, bio-rational methods for controlling pest insect populations," Kanost said. Armed with this new information, a number of practical applications are possible. Materials based on the chemistry of the insect exoskeleton could be developed to make lightweight materials for aircraft and mil...

Study provides insight into cellular defenses against genetic mutation

...t regulates the expression of many normal genes by controlling the timeframe in which their encoded mRNAs decay. Evolution often borrows a useful mechanism from one process and puts it to work in another." ...

Gene that helps mosquitoes fight off malaria parasite identified

...n mosquitoes. It may help provide better tools for controlling the disease in the future," said lead author Eappen G. Abraham, PhD, research associate in the Department of Molecular Microbiology and Immunology and the Malaria Research Institute at the Bloomberg School of Public Health. "These results provided n...

GM crop that holds on to its seeds offers higher yields

...hnology Journal on 16 August Østergaard says that controlling seedpod opening could have the added benefit of reducing the chance of the inserted genes moving to non-GM crops or wild species. He adds that the same approach could be used in other crops that disperse their seeds in a similar way, such as soybean ...

Retinal scans eyed for New Mexico show cattle

...of privacy. But experts stress the importance of controlling cattle diseases before they get out of hand, said Clay Mathis, a livestock specialist with NMSU's Cooperative Extension Service. Even though the new system will cost producers more money, it will eventually mean the full tracking of animal movement t...

Toasty oat aroma influenced by presence of health-linked polyphenols

... storing. The new Penn State results suggest that controlling the levels of polyphenols, which are found natural... storing. The new Penn State results suggest that controlling the levels of polyphenols, which are found naturally in all food plants, might prevent undesirable r...

Chemical compound inhibits tumor growth, size in new mouse study

... storing. The new Penn State results suggest that controlling the levels of polyphenols, which are found natural... storing. The new Penn State results suggest that controlling the levels of polyphenols, which are found naturally in all food plants, might prevent undesirable r...

New study examines how sense of smell affects mating and aggression in mice

...rrent research findings might also be relevant for controlling pest populations, which utilize olfactory cues in a manner similar to mice, according to Shah. ...

Penn study finds direct role for glial cells in brain cross-talk

...led adenosine, which is thought to be important in controlling wake-to-sleep transitions and epileptic seizures. "This finding may cause neuroscientists to radically alter their view of the role of astrocytes as merely supportive to one of actively communicating with and instructing neurons," states senior auth...

New GM mosquito sexing technique is step towards malaria control, report scientists

..."This advance could have enormous implications for controlling mosquito populations. Now that we can identify mal...e release of sterile males has proven effective in controlling several insect pests when methods for sorting sex are available. "Female mosquitoes are responsible...

Report focuses on challenges to unlocking future promise of vaccines

...demy of Microbiology. "The success of vaccines in controlling disease has been profound. Many diseases that formerly raged unchecked are now under control and others have been eliminated in parts of the world. Despite this success, infectious diseases continue to be public health problems particularly in deve...

How Fruitflies Know It's Time for Lunch

...ether, these few hug neurons can signal structures controlling growth, feeding, and learning and memory. Besides linking hug neurons to brain centers that regulate taste-related feeding behavior, the study also raises questions about how the nervous system prioritizes internal and external signals. How hungry m...

A New Era of Hope for the World's Most Neglected Diseases

... manufacturing capacity. These countries can begin controlling their endemic tropical diseases themselves by developing their own treatments and vaccines with only modest technical or financial assistance from more developed countries. Secondly, in addition to the expectation that new tools will be developed to...

Genetic analysis of cavefish reveals more about evolution

...cate the regions of the chromosomes that had genes controlling cave related traits. The researchers found that genetic markers for albinism in the two groups appeared in the same location, suggesting three possibilities: the two cave populations had the same mutation in the same gene, they showed different muta...

'Perception' gene tracked humanity's evolution, scientists say

...paration from the other apes is a short one. Genes controlling the development of the brain almost always turn out to be identical or nearly so in chimpanzees and human beings. And as it turns out, the protein prodynorphin is identical in humans and chimps. It's the prodynorphin gene's promoter sequence -- ups...

Researchers show key protein necessary for normal development of red blood cells

... Researchers observed that KLF2 is responsible for controlling and "turning on" the embryonic globin gene. "Unde...he roles of EKLF and KLF2 may partially overlap in controlling human embryonic and fetal globin gene expression. This research was supported by a grant from the ...

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